update sample cpu doc

Author: khosravipasha

src/queries/sample_cpu.jl

@@ -15,7 +15,7 @@ function sample(pc::ProbCircuit, num_samples, types; rng = default_rng(), Float=
 end
 
 """
-    sample(pc::ProbCircuit, num_samples; rng = default_rng())
+    sample(pc::ProbCircuit, num_samples; batch_size, rng = default_rng())
 
 Generate `num_samples` from the joint distribution of the circuit conditioned on the `data`.
 """
@@ -73,4 +73,4 @@ function sample_rec!(node::ProbCircuit, states, values, data; s_id, ex_id, rng,
         sample_rec!(sampled_child, states, values, data; s_id, ex_id, rng, node2idx)
     end
     return nothing
-end
+end